Water-heating apparatus



ML. HOWARD. WATER HEATINGAPPARATUS. APPLICATION FILED JULY 24, I920 -1,% s35 Emma- M. 117, 11922.

Patented Get. 17, 19220 WATER-HEATING APPARATUS.

Application filed July 24,

To aZZ whom it may concern:

Be it known that I, ALLEN LnsLIn How- ARD, a subject of the King of Great Britain, residing at Vankl'eek Hill, in the Province of Ontario and Dominion of Canada, have invented certain new and useful Improvements in a lVaterd'leating Apparatus, of which the following is a specification.

This invention relates to water heating apparatus and particularly to an improved device for quickly heating water and also has relation to an improved method of utilizing the various kinds of heat known in physics to rapidly heat the water.

Another object of the invention is to provide an apparatus of this character which may be used on a gas, electric, coal, or oil stove without interfering with the use of the heating element in'the stove for ordinary cooking purposes.

Another object of the invention is to provide a construction for an apparatus of this character which will cause the water to flow from the hottest chamber to the main reservoir so that a constant circulation of water will be maintained during the heating process; and in drawing of? water the hottest is procured first.

Other objects of the invention will appear upon consideration of the following detail description and accompanying drawings, wherein Figure l is a perspective View of one of the embodiments of the invention,

Figure 52, is a detail perspective view of the automatic filling chamber,

Figure 3 is a detail perspective view of a modified structure involving the invention,

Figure l is a perspective View of the instantaneous hot water compartment as a separate unit.

Referring to the drawing by numerals, the main reservoir 1 is substantially square in formation except for the provision of one open side 2 whereby the compartment or reservoir is substantially U-shaped. The top is sufliciently loose to permit the free passage of air. The wall designated at 8 is intended to lie adjacent the end of the stove and the wall t is disposed between two heat elements of the stove, one of the heat elements being indicated by dotted lines at 5. A sectional compartment 6, shown in detail in Fig. 4 is included in the wall 4: and it is provided at its top with 1920; Serial No. 398,832.

removable caps. '2 preferably air-tight. A. connecting tube 9 establishes communication between the compartment 6 and the reservoir 1.

' Parallel tubes it) are arranged in the space between the walls of the structure and are spaced apart as shown in Fig. 1 so that they may be extended directly across the heating element when the device is in use. The tubes 10 thus establish communication between the sections so that a circulation of water to be heated will be permitted.

As shown in detail in Fig. 2 wherein a portion of the structure is illustrated in perspective, the thin sealed chamber 14 has an upstanding air exhaust valve 11 at its top which automatically acts to cause the water to maintain a high level in the chamber so long as the level in the main reservoir is not below the opening 12 as shown in Fig. 2. The valve is normally maintained in a closed position but is open during the filling of the reservoir to permit the escape of the air within the chamber. The bottom of this section is not sealed but has an opening 13 and a flow of water is induced from the opening 13 to the outlet opening 12 where the water passes into the main reservoir 1. If steam gathers in the section 14, it merely forces the water out and when it condenses the water will return by reason of the vacuum within the section.

In Fig. 3 l have illustrated a modified form of the invention which is substantially the same as that above described except that the end portion l l' of the sealed chamber is curved or rounded as shown in the drawing, rather than square as illustrated in Figs. 1 and 2. Asidefrom this, the operation and construction of the modified form is the same as that above described. Each of the structures, however, are provided with brace elements 15 and supporting members at the corners inclicated at 16.

In use, the reservoir 1 is filled with water and while being filled the air exhaust valve 11 of the chamber it remains open. The valve is closed and the device is placed on the stove so as to surround the heating element. The water in the chamber l l becomes heated and as it passes into the reservoir through the opening 12, the chamber is automatlcally filled. to a hlgh level, so long as the level of the water in the reserchamber.

this device instantaneous hot water may be secured where there is no domestic water system in use, and this may be accomplished with a conservation of heat, and it increases the working capacity of the stove on which it is used.

While I have described the invention in general, I desire it to be understood that slight changes. and modifications may be made in the various details of construction Without departing from the spirit of the invention or the scope of the claims hereunto appended.

What I claim is 1. In combination with a stove having a heating element, a detachable reservoir partially surrounding said heating element, a separable compartment having communication with the main reservoir, a chamber extending along the wall of the reservoir nearexhaust valve carried by said chamber for the purpose specified.

2. In combination with a stove having a heating element, a detachable reservoir of substantially L-shape, a separable compartment having communication with the said reservoir, a chamber formed along the in- Side wall of the reservoir, an air exhaust valve for said chamber, spaced parallel pipes connecting the separable compartment and chamber extending across the said'heating element, and a drain cock at one end of the compartment.

3. In combination with a stove having a heating element, a reservoir partially surrounding said heating element of substantially U-shape, a chamber adjacent the reservoir having an air exhaust valve, circulation pipes connecting the chamber and the reservoir extending across the heating element, and a drain cock at one end of the reservoir.

In testimony whereof, I have affixed my signature in the presence of two witnesses.

ALLEN LESLIE HOVARD.

\Vitnesses THOS. A. CRAIG, C. C. PEI/ION. 

